Rotary helicopter and support



June 7 i949.

w. L. WEST ROTARY HELIcoPR AND SUPPORT June 7 1949. W. L. WEST 2,472,556

ROTARY HELcoPER AND SUPPORT 0ne end of said tube and a pair of wires leadjng fron1 the brushes to the electric Inotor, a toy heli- Copter Secured on the 0ther end of said tube and having a prope11er disposed thereabove ITleans connecting said drivi11g Shaft at one end to the electric In0tor and its other end to said prope11er, resistance Ineans in said e]ectrical circuit fo1` contr011ing the revolutions per Ininute of said electric 1T10tor, upward and downward nlovenlent of said shaft in said pipe tending to oscillate said c01lar and the tube carried thereby to thereby vary the angle of attack of the propeller of the he1cOper.

3' In a toy C0Inprising a stand, a tube nlounted interfnediate its ends in said stnd the nleans for n1ounting the tube at the upper end of said stand pern...itting rotation of the tube and n10unting Ineans relative to the stand, an electric 1Tlotor Tnounted on one end of the tube, aa toy helicopter mounted on the other end of said tube, a driving Shaft in said tube having one end connected to the electric Tnotor and the other end connected to the propeller of the he1icopter, re!10tely contro11ed Ineans for 0Scil1ating Said tube to vary the angle of attack of the helicopter and nleans fol' varying the revolutions per Ininute of the Inotor to thereby vary the Speed of rotation of the propeller.

4- In a' roundabout, a'! elongated pipe pivoted internlediate its ends on a' vertically disposed Sup port, a driving shaft disposed in said pipe, an electric Inotor Inounted on one end of the pipe and connected to Said driving shaft a toy he]icopter secured on the other end of the pipe and having a rotor disposed thereabove, a driving connection between the driving shaft and the rotor for imparting rotation thereto, Ineans fo! conducting electrical current to said Inotor, and renlotey controlled nleans for oscillating Said pipe to thereby change the angle of attack of the toy helicopter and contro1 its directi011 0f night.

5' n a roundabout comprising a vertically Inov able support, a pipe Inounted internediate its ends on the upper end of said supp0t, a T10tor n10unted on one end of the pipe, a toy helicopter having a rotor Inounted on the other end of said pipe, a driving shaft disposed Within said pipe and c011nected to said nlotor and to saidrotor, Ten10tely Inounted 1Tleans for tilting the support for the pipe to vary the angle of attack of the rotor of the helicopter to thereby cause it to fly either forward or backward.

wT...[AM L WEST.

1'o references cited. 

